Ball Clay Powder

Ball clay is a rare mineral found in very few places around the world. The name of “Washed Ball Clay” refers to the type of clay having high plasticity and which is rich in organic matter mainly consisting of unprocessed Kaolin. It also is sometimes referred to as plastic clay.
Ball clays are sedimentary in origin. Ancient rivers and streams washed kaolinite (formed from decomposed granite) from its parent rock. As the streams flowed from upland area they mixed with other clay minerals, sands, gravels and vegetation before settling in low-lying basins to form overlaying seams of ball clay. Ball clays usually contain three dominant minerals: from 20-80% kaolinite, 10-25% mica, and 6-65% quartz. In addition, there are other 'accessory' minerals and some carbonaceous material (derived from ancient plants) present.